(19)
(11) EP 1 398 691 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.03.2006 Bulletin 2006/09

(43) Date of publication A2:
17.03.2004 Bulletin 2004/12

(21) Application number: 03020450.7

(22) Date of filing: 12.09.2003
(51) International Patent Classification (IPC): 
G06F 7/58(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 13.09.2002 JP 2002269129

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
Tokyo (JP)

(72) Inventors:
  • Yasuda, Shinichi
    1-1 Shibaura 1-chome Minato-ku Tokyo (JP)
  • Fujita, Shinobu
    1-1 Shibaura 1-chome Minato-ku Tokyo (JP)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) Random number generator


(57) A random number generator comprising a counter circuit configured to be supplied with a clock signal and a random signal, and to provide a count value of the clock signal with respect to a transition of the random signal, and a first latch circuit configured to latch the count value with respect to the transition of the random signal, and to provide a first random number signal.







Search report